TY  - CONF
AU  - Milović, Ljubica
AU  - Sedmak, Aleksandar
AU  - Blačić, Ivo
AU  - Vuherer, Tomaž
AU  - Petrovski, Blagoj
PY  - 2022
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6428
AB  - In order to assess the integrity of welded pressure vessel containing a crack, the behavior of three-point bending specimens made of HSLA steel welded joint are tested at -40 °C, and their fracture behaviour analyzed, as a conservative measure of crack resistance. Specimens were made of low-alloyed steel NIONIKRAL 70, welded by SAW process. Surface notches were machined by the electro-erosion method in the parent metal (PM), heat affected zone (HAZ) and weld metal (WM). The highest resistance to cracking was in PM, and the lowest one in WM, due to so-called pop-in behaviour.
PB  - Elsevier B.V.
C3  - 23rd European Conference on Fracture, ECF 2022, Procedia Structural Integrity
T1  - Experimental Analysis of HSLA Steel Welded Joint Fracture Behaviour
EP  - 1502
SP  - 1497
VL  - 42
DO  - 10.1016/j.prostr.2022.12.190
ER  - 

@conference{
author = "Milović, Ljubica and Sedmak, Aleksandar and Blačić, Ivo and Vuherer, Tomaž and Petrovski, Blagoj",
year = "2022",
abstract = "In order to assess the integrity of welded pressure vessel containing a crack, the behavior of three-point bending specimens made of HSLA steel welded joint are tested at -40 °C, and their fracture behaviour analyzed, as a conservative measure of crack resistance. Specimens were made of low-alloyed steel NIONIKRAL 70, welded by SAW process. Surface notches were machined by the electro-erosion method in the parent metal (PM), heat affected zone (HAZ) and weld metal (WM). The highest resistance to cracking was in PM, and the lowest one in WM, due to so-called pop-in behaviour.",
publisher = "Elsevier B.V.",
journal = "23rd European Conference on Fracture, ECF 2022, Procedia Structural Integrity",
title = "Experimental Analysis of HSLA Steel Welded Joint Fracture Behaviour",
pages = "1502-1497",
volume = "42",
doi = "10.1016/j.prostr.2022.12.190"
}

Milović, L., Sedmak, A., Blačić, I., Vuherer, T.,& Petrovski, B.. (2022). Experimental Analysis of HSLA Steel Welded Joint Fracture Behaviour. in 23rd European Conference on Fracture, ECF 2022, Procedia Structural Integrity
Elsevier B.V.., 42, 1497-1502.
https://doi.org/10.1016/j.prostr.2022.12.190

Milović L, Sedmak A, Blačić I, Vuherer T, Petrovski B. Experimental Analysis of HSLA Steel Welded Joint Fracture Behaviour. in 23rd European Conference on Fracture, ECF 2022, Procedia Structural Integrity. 2022;42:1497-1502.
doi:10.1016/j.prostr.2022.12.190 .

Milović, Ljubica, Sedmak, Aleksandar, Blačić, Ivo, Vuherer, Tomaž, Petrovski, Blagoj, "Experimental Analysis of HSLA Steel Welded Joint Fracture Behaviour" in 23rd European Conference on Fracture, ECF 2022, Procedia Structural Integrity, 42 (2022):1497-1502,
https://doi.org/10.1016/j.prostr.2022.12.190 . .

TY  - JOUR
AU  - Aleksić, Vujadin
AU  - Milović, Ljubica
AU  - Blačić, Ivo
AU  - Vuherer, Tomaz
AU  - Bulatović, Srđan
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4086
AB  - Numerous structural components made of high strength low-alloyed steels are often exposed to low-cycle fatigue loading during their exploitation life. In order to study the fatigue behavior of one grade of structural steels produced in Yugoslavia during the eighties of the last century, a push-pull constant amplitude strain-controlled fatigue tests were conducted at room temperatures. This paper analyses behavior of two different materials, parent steel (PM) and its coarse-grained (CG) simulated heat-affected zone (SHAZ) exposed to the action of low-cycle fatigue (LCF) loading performed in the range from 1 to 10(4) cycles. LCF tests were conducted at strain ratio R = -1 at strain amplitude range from 0.3% to 0.8%. The materials' Coffin-Manson parameters appearing in the strain-life and cyclic stress-strain curves were calculated. Fracture surface analysis of both materials was done. The results showed that plasticity under dynamic load conditions is satisfactory for both materials which give them good resistance to crack initiation and propagation.
PB  - Pergamon-Elsevier Science Ltd, Oxford
T2  - Engineering Failure Analysis
T1  - Effect of LCF on behavior and microstructure of microalloyed HSLA steel and its simulated CGHAZ
EP  - 1106
SP  - 1094
VL  - 104
DO  - 10.1016/j.engfailanal.2019.06.017
ER  - 

@article{
author = "Aleksić, Vujadin and Milović, Ljubica and Blačić, Ivo and Vuherer, Tomaz and Bulatović, Srđan",
year = "2019",
abstract = "Numerous structural components made of high strength low-alloyed steels are often exposed to low-cycle fatigue loading during their exploitation life. In order to study the fatigue behavior of one grade of structural steels produced in Yugoslavia during the eighties of the last century, a push-pull constant amplitude strain-controlled fatigue tests were conducted at room temperatures. This paper analyses behavior of two different materials, parent steel (PM) and its coarse-grained (CG) simulated heat-affected zone (SHAZ) exposed to the action of low-cycle fatigue (LCF) loading performed in the range from 1 to 10(4) cycles. LCF tests were conducted at strain ratio R = -1 at strain amplitude range from 0.3% to 0.8%. The materials' Coffin-Manson parameters appearing in the strain-life and cyclic stress-strain curves were calculated. Fracture surface analysis of both materials was done. The results showed that plasticity under dynamic load conditions is satisfactory for both materials which give them good resistance to crack initiation and propagation.",
publisher = "Pergamon-Elsevier Science Ltd, Oxford",
journal = "Engineering Failure Analysis",
title = "Effect of LCF on behavior and microstructure of microalloyed HSLA steel and its simulated CGHAZ",
pages = "1106-1094",
volume = "104",
doi = "10.1016/j.engfailanal.2019.06.017"
}

Aleksić, V., Milović, L., Blačić, I., Vuherer, T.,& Bulatović, S.. (2019). Effect of LCF on behavior and microstructure of microalloyed HSLA steel and its simulated CGHAZ. in Engineering Failure Analysis
Pergamon-Elsevier Science Ltd, Oxford., 104, 1094-1106.
https://doi.org/10.1016/j.engfailanal.2019.06.017

Aleksić V, Milović L, Blačić I, Vuherer T, Bulatović S. Effect of LCF on behavior and microstructure of microalloyed HSLA steel and its simulated CGHAZ. in Engineering Failure Analysis. 2019;104:1094-1106.
doi:10.1016/j.engfailanal.2019.06.017 .

Aleksić, Vujadin, Milović, Ljubica, Blačić, Ivo, Vuherer, Tomaz, Bulatović, Srđan, "Effect of LCF on behavior and microstructure of microalloyed HSLA steel and its simulated CGHAZ" in Engineering Failure Analysis, 104 (2019):1094-1106,
https://doi.org/10.1016/j.engfailanal.2019.06.017 . .

TY  - JOUR
AU  - Milović, Ljubica
AU  - Vuherer, T.
AU  - Blačić, Ivo
AU  - Vrhovac, Miran
AU  - Stanković, M.
PY  - 2013
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2476
AB  - The subject of this paper is the microstructural and mechanical characterisation of regions of the heat-affected zone (HAZ) in steels containing 9-12% Cr that are used for operation at elevated temperatures. Tests were performed on regions in the HAZ, which was created by physical simulation using a thermal welding simulator. Half of the simulated samples (SSs) were tested at room temperature (RT) and at an operating temperature (OT) of 600 degrees C immediately after simulation/welding, while the rest of the simulated samples were tested at RT and at the OT after heat treatment following the welding, i.e., post-weld heat treatment (PWHT). In addition to the results from mechanical testing, the results from microstructural analysis using light microscopy, scanning electron microscopy (SEM) and transmission electron microscopy (TEM) are also presented. The manner in which PWHT contributes to the creep resistance of the HAZ in P91 steel is demonstrated.
PB  - Elsevier Sci Ltd, Oxford
T2  - Materials & Design
T1  - Microstructures and mechanical properties of creep resistant steel for application at elevated temperatures
EP  - 667
SP  - 660
VL  - 46
DO  - 10.1016/j.matdes.2012.10.057
ER  - 

@article{
author = "Milović, Ljubica and Vuherer, T. and Blačić, Ivo and Vrhovac, Miran and Stanković, M.",
year = "2013",
abstract = "The subject of this paper is the microstructural and mechanical characterisation of regions of the heat-affected zone (HAZ) in steels containing 9-12% Cr that are used for operation at elevated temperatures. Tests were performed on regions in the HAZ, which was created by physical simulation using a thermal welding simulator. Half of the simulated samples (SSs) were tested at room temperature (RT) and at an operating temperature (OT) of 600 degrees C immediately after simulation/welding, while the rest of the simulated samples were tested at RT and at the OT after heat treatment following the welding, i.e., post-weld heat treatment (PWHT). In addition to the results from mechanical testing, the results from microstructural analysis using light microscopy, scanning electron microscopy (SEM) and transmission electron microscopy (TEM) are also presented. The manner in which PWHT contributes to the creep resistance of the HAZ in P91 steel is demonstrated.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Materials & Design",
title = "Microstructures and mechanical properties of creep resistant steel for application at elevated temperatures",
pages = "667-660",
volume = "46",
doi = "10.1016/j.matdes.2012.10.057"
}

Milović, L., Vuherer, T., Blačić, I., Vrhovac, M.,& Stanković, M.. (2013). Microstructures and mechanical properties of creep resistant steel for application at elevated temperatures. in Materials & Design
Elsevier Sci Ltd, Oxford., 46, 660-667.
https://doi.org/10.1016/j.matdes.2012.10.057

Milović L, Vuherer T, Blačić I, Vrhovac M, Stanković M. Microstructures and mechanical properties of creep resistant steel for application at elevated temperatures. in Materials & Design. 2013;46:660-667.
doi:10.1016/j.matdes.2012.10.057 .

Milović, Ljubica, Vuherer, T., Blačić, Ivo, Vrhovac, Miran, Stanković, M., "Microstructures and mechanical properties of creep resistant steel for application at elevated temperatures" in Materials & Design, 46 (2013):660-667,
https://doi.org/10.1016/j.matdes.2012.10.057 . .

TY  - JOUR
AU  - Rakin, Marko
AU  - Cvijović, Zorica
AU  - Grabulov, Vencislav
AU  - Blačić, Ivo
AU  - Zrilić, Milorad
AU  - Putić, Slaviša
PY  - 2001
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/386
AB  - In the presented paper a micromechanical model based on a particular flow criterion of a porous solid has been applied. In this study crack initiation in the smooth specimen made of steel 22 NiMoCr 3 7 has been analyzed; the micromechanical model was incorporated into the finite element (FE) program. Initial data related to non-metallic inclusions were determined by the quantitative optical microscopy. The study was performed within the scope of ESIS TC8 Numerical Round Robin on Micromechanical Models, Phase II, Task A.... .
AB  - U radu je primenjen mikromehanički model zasnovan na posebnom kriterijumu plastičnog tečenja materijala. Nastanak prsline izazvan pojavom, rastom i spajanjem šupljina, analiziran je na osnovu ponašanja pri zatezanju glatke cilindrične epruvete izrađene od čelika 22 NiMoCr 3 7. Ulazni podaci za proračun koji se odnose na zastupljenost i veličinu nemetalnih uključaka su određeni optičkom mikroskopijom. Dobijeni rezultati ukazuju da primenjeni mikromehanički model može da se koristi za karakterizaciju materijala i analizu pojave prsline u standardnoj epruveti izrađenoj od konstrukcionog čelika, a da je kvantitativna metalurška analiza neophodna za opis prve faze žilavog loma - nastanak šupljina. .
PB  - Vojnotehnički institut, Beograd
T2  - Naučno-tehnički pregled
T1  - Analysis of crack initiation by micromechanism of ductile fracture in structural steel
T1  - Analiza nastanka prsline mikromehanizmom žilavog loma u konstrukcionom čeliku
EP  - 17
IS  - 2
SP  - 13
VL  - 51
UR  - https://hdl.handle.net/21.15107/rcub_technorep_386
ER  - 

@article{
author = "Rakin, Marko and Cvijović, Zorica and Grabulov, Vencislav and Blačić, Ivo and Zrilić, Milorad and Putić, Slaviša",
year = "2001",
abstract = "In the presented paper a micromechanical model based on a particular flow criterion of a porous solid has been applied. In this study crack initiation in the smooth specimen made of steel 22 NiMoCr 3 7 has been analyzed; the micromechanical model was incorporated into the finite element (FE) program. Initial data related to non-metallic inclusions were determined by the quantitative optical microscopy. The study was performed within the scope of ESIS TC8 Numerical Round Robin on Micromechanical Models, Phase II, Task A.... ., U radu je primenjen mikromehanički model zasnovan na posebnom kriterijumu plastičnog tečenja materijala. Nastanak prsline izazvan pojavom, rastom i spajanjem šupljina, analiziran je na osnovu ponašanja pri zatezanju glatke cilindrične epruvete izrađene od čelika 22 NiMoCr 3 7. Ulazni podaci za proračun koji se odnose na zastupljenost i veličinu nemetalnih uključaka su određeni optičkom mikroskopijom. Dobijeni rezultati ukazuju da primenjeni mikromehanički model može da se koristi za karakterizaciju materijala i analizu pojave prsline u standardnoj epruveti izrađenoj od konstrukcionog čelika, a da je kvantitativna metalurška analiza neophodna za opis prve faze žilavog loma - nastanak šupljina. .",
publisher = "Vojnotehnički institut, Beograd",
journal = "Naučno-tehnički pregled",
title = "Analysis of crack initiation by micromechanism of ductile fracture in structural steel, Analiza nastanka prsline mikromehanizmom žilavog loma u konstrukcionom čeliku",
pages = "17-13",
number = "2",
volume = "51",
url = "https://hdl.handle.net/21.15107/rcub_technorep_386"
}

Rakin, M., Cvijović, Z., Grabulov, V., Blačić, I., Zrilić, M.,& Putić, S.. (2001). Analysis of crack initiation by micromechanism of ductile fracture in structural steel. in Naučno-tehnički pregled
Vojnotehnički institut, Beograd., 51(2), 13-17.
https://hdl.handle.net/21.15107/rcub_technorep_386

Rakin M, Cvijović Z, Grabulov V, Blačić I, Zrilić M, Putić S. Analysis of crack initiation by micromechanism of ductile fracture in structural steel. in Naučno-tehnički pregled. 2001;51(2):13-17.
https://hdl.handle.net/21.15107/rcub_technorep_386 .

Rakin, Marko, Cvijović, Zorica, Grabulov, Vencislav, Blačić, Ivo, Zrilić, Milorad, Putić, Slaviša, "Analysis of crack initiation by micromechanism of ductile fracture in structural steel" in Naučno-tehnički pregled, 51, no. 2 (2001):13-17,
https://hdl.handle.net/21.15107/rcub_technorep_386 .